SE9602979D0 - Pacemaker - Google Patents



Publication number
SE9602979D0 SE9602979A SE9602979A SE9602979D0 SE 9602979 D0 SE9602979 D0 SE 9602979D0 SE 9602979 A SE9602979 A SE 9602979A SE 9602979 A SE9602979 A SE 9602979A SE 9602979 D0 SE9602979 D0 SE 9602979D0
Prior art keywords
Prior art date
Application number
Other languages
Swedish (sv)
Staffan Bowald
Sven-Erik Hedberg
Karin Jaerverud
Kjell Noren
Original Assignee
Pacesetter Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pacesetter Ab filed Critical Pacesetter Ab
Priority to SE9602979A priority Critical patent/SE9602979D0/en
Publication of SE9602979D0 publication Critical patent/SE9602979D0/en



PCT No. PCT/SE97/01239 Sec. 371 Date Feb. 12, 1999 Sec. 102(e) Date Feb. 12, 1999 PCT Filed Jul. 4, 1997 PCT Pub. No. WO98/06454 PCT Pub. Date Feb. 19, 1998A pacemaker has control circuits contained in an enclosure and a lead containing an electrical conductor connected to an electrode for delivering electrical stimulation pulses to a heart. The stretching of a wall in the ventricle, corresponding to adequate filling of the ventricle in the heart, is determined in order to identify a time of emitting the stimulation pulses. This stretching is measured indirectly by measurement of pressure in the ventricle using a pressure sensor disposed near the lead in the ventricle. The signal from the sensor is supplied via the lead to circuitry in the enclosure, wherein the signal is amplified and is supplied to an edge detector, which detects an increasing or positive edge of the signal. The edge detector compares the incoming signal with a threshold value, and when the pressure indicated by the signal increases so as to exceed the threshold value, the edge detector supplies a signal to the control circuit which, in turn, triggers the emission of a stimulation pulse from a pulse generator, with or without a delay. The aforementioned stretching can also be measured using a strain gauge or a distance sensor attached to the ventricle wall.
SE9602979A 1996-08-14 1996-08-14 Pacemaker SE9602979D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9602979A SE9602979D0 (en) 1996-08-14 1996-08-14 Pacemaker

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE9602979A SE9602979D0 (en) 1996-08-14 1996-08-14 Pacemaker
DE1997625330 DE69725330D1 (en) 1996-08-14 1997-07-04 Pacemaker
US09/242,278 US6078835A (en) 1996-08-14 1997-07-04 Pacemaker wherein emission of stimulation pulses is controlled dependent on stretching of the ventricular wall
PCT/SE1997/001239 WO1998006454A1 (en) 1996-08-14 1997-07-04 Pacemaker
EP19970932115 EP0928213B1 (en) 1996-08-14 1997-07-04 Pacemaker
DE69725330T DE69725330T2 (en) 1996-08-14 1997-07-04 Pacemaker

Publications (1)

Publication Number Publication Date
SE9602979D0 true SE9602979D0 (en) 1996-08-14



Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602979A SE9602979D0 (en) 1996-08-14 1996-08-14 Pacemaker

Country Status (5)

Country Link
US (1) US6078835A (en)
EP (1) EP0928213B1 (en)
DE (2) DE69725330D1 (en)
SE (1) SE9602979D0 (en)
WO (1) WO1998006454A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314322B1 (en) * 1998-03-02 2001-11-06 Abiomed, Inc. System and method for treating dilated cardiomyopathy using end diastolic volume (EDV) sensing
US6406422B1 (en) 2000-03-02 2002-06-18 Levram Medical Devices, Ltd. Ventricular-assist method and apparatus
US20020116029A1 (en) * 2001-02-20 2002-08-22 Victor Miller MRI-compatible pacemaker with power carrying photonic catheter and isolated pulse generating electronics providing VOO functionality
US8192376B2 (en) * 2003-08-18 2012-06-05 Cardiac Pacemakers, Inc. Sleep state classification
US7909770B2 (en) * 2006-07-05 2011-03-22 Cardiomems, Inc. Method for using a wireless pressure sensor to monitor pressure inside the human heart
WO2008105690A1 (en) * 2007-02-28 2008-09-04 St. Jude Medical Ab An implantable heart analysing device system and method
US8818507B2 (en) * 2008-05-27 2014-08-26 Cardiac Pacemakers, Inc. Coronary vein dimensional sensor and fixation apparatus
US20110004117A1 (en) * 2009-07-01 2011-01-06 Medtronic, Inc. Implant parameter selection based on compressive force
WO2011030287A1 (en) 2009-09-09 2011-03-17 Guy Dori Methods and apparatus for optimizing cardiac output, preventing backward heart failure, and minimizing diastolic myocardial wall stress by controlling left ventricular filling
EP2491977B1 (en) 2011-02-28 2014-01-08 St. Jude Medical AB System for adapting pacing settings of a cardiac stimulator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052991A (en) * 1970-03-24 1977-10-11 Fred Zacouto Method of stimulating the heart
US4802481A (en) * 1984-07-19 1989-02-07 Cordis Leads, Inc. Apparatus for controlling pacing of a heart in response to changes in stroke volume
US4716887A (en) * 1985-04-11 1988-01-05 Telectronics N.V. Apparatus and method for adjusting heart/pacer rate relative to cardiac pCO2 to obtain a required cardiac output
US4719921A (en) * 1985-08-28 1988-01-19 Raul Chirife Cardiac pacemaker adaptive to physiological requirements
DE3750983D1 (en) * 1987-05-01 1995-02-23 Cardiac Pacemakers Inc Biomedical Method and apparatus for controlled delivery of treatment for a patient with respect to changes in the physiological needs.
CA2033765C (en) * 1990-03-08 1999-10-19 Brian D. Pederson Variation in cardiac chamber volume or pressure as a controlling parameter
DE4231601A1 (en) * 1992-09-17 1994-03-24 Biotronik Mess & Therapieg Arrangement for controlling a heart pacemaker
SE9202937D0 (en) * 1992-10-07 1992-10-07 Siemens Elema Ab rate adaptive hjaertstimulator
US5628777A (en) * 1993-07-14 1997-05-13 Pacesetter, Inc. Implantable leads incorporating cardiac wall acceleration sensors and method of fabrication
WO1995027531A1 (en) * 1994-04-08 1995-10-19 Pacesetter, Inc. Cardiac pacemaker with physiological control and method
US5626623A (en) * 1996-04-30 1997-05-06 Medtronic, Inc. Method and apparatus for optimizing pacemaker AV delay

Also Published As

Publication number Publication date
DE69725330D1 (en) 2003-11-06
WO1998006454A1 (en) 1998-02-19
EP0928213A1 (en) 1999-07-14
DE69725330T2 (en) 2004-08-26
US6078835A (en) 2000-06-20
EP0928213B1 (en) 2003-10-01

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